Waste-pipe flushing device



Mar. 3. 1925.

H. SCHERMERHORN ET AL WASTE PIPE FLUSHING DEVICE Filed April 13.- 1925 cleaning device for drain or waste pipes,

Patented Mar. 3, 1925.

UNITED STATES rszaaa PATENT OFFICE.

HAYES SCHERMERHORN AND JUDD W. WEATHERWAX, OF LOS ANGELES, CALIFOR- NIA, SAID SCHERIvIER-HORN'ASSIGNOR OF HIS ENTIRE MERHORN, OF LOS ANGELES, CALIFORNIA. i

RIGHT TO MARY SCHEB- WASTE-PIPE FLUSHI NG DEVICE.

Application filed April 13, 1923. Serial No. 631,885.

To all whom it may concern: I 7

Be it known that we, HAYES SGHERMER- HORN and J UDD NV. VVEATHERWAX, citizens of the United States, residing at Los An geles, in the county of Los Angeles and State of California, have invented new and useful Improvements in aste-Pipe Flushing Devices, of wh ich the following is a specification.

Our invention relates to a flushing and the principal object of our invention being to provide a relatively simple and practical device that may be easily and conven'ently used and whichisparticularlydesigned to utilize the pressure ofwater for the flushing and cleaning of waste'or drain pipes that lead from sinks, bathtubs, wash bowls and the like.

Further objects are, to provide a device of the character described, that is of relatively simple structure and capable of being easily and cheaply produced, to provide a flushing device that may be firmly secured in position for use, and which, when properly applied will prevent leakage of the flushing water into the sink or bowl and further, to provide a flushing device that may be used without requiring any special effort on the part of the user and without requiring the use of special tools or skilled labor.

With the foregoing and other objects in view, our invention consists in certainnovel features of construction and arrangement of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawings in which:

Fig. 1 is a perspective view of our improved flushing device in position for use in a sink and connected to one of the faucets that discharges water under pressure into said sink.

ing a fiat under face in which is formed an annular groove 12, which, when the device is applied for use, constitutes a vacuum suction chamber as will be hereinafter more fully describedf Formed at the apex of the body 10 is a block 13 of the same material as said body and passing axially through said block is a rod 14, the lower end of which is provided with a short, tapered threaded shank 15.

Formed integral with or fixed to rod 14, abovethe body 10 is a disc 16 that normally fits snugly on top of block 13 and the upper end of sa d rod terminates in a pair of wings 17 that may be readily engaged be tween the thumb and fingers when said rod is to be rotated.

Connected to the upper portion of the, body 10, adjacent to block 13, is one end of a flexible tube 18, preferably rubber, the other or free end thereof being formed with a relatively thick wall 19 that terminates in annular bead 20.

Formed in the inner face of this tube and within the bead 20 is an annular groove 21, which, when the end of the tube is applied to a faucet or other source of water under pressure, performs the functions of a vacuum suction chamber and tends to cause the tube to adhere to and retain its connection with said faucet.

When our improved flushing device is applied for use, the free end of the tube 18 is slipped onto the end of the faucet and member 10 is positioned on the bottom of the sink, directly over the strainer or perforated plate that is located over the mouth or inlet end of the waste p pe. 7

Rod 14 is now rotated so as to cause threaded shank 15 to engage in one of the perforations in the strainer plate, and as this action is continued, the flat under face of flange 11 will be forced or pressed against the surface upon which it rests.

Under a certain degree of pressure, a portion of the air trapped within groove 12 will be expelled therefrom, thereby producing sufficient partial vacuum to cause the under side of the flange to adhere to the supporting surface by the resultingsuction and consequently a leak proof joint is formed between the lower edge of the body 10 and the surface upon which it rests.

As the faucet to which the tube is connected is opened, the water, under pressure will rush through tube 1.8 and hollow body 10, thence through the strainer plate and thence through the waste pipe, thereby thoroughly flushing the latter and carrying off all accumulations therefrom.

Inasmuch as the rod 14 is always retained upon the hollow body our improved flush ing device may be referred to as one-piece structure and in this respect, it has advantages over devices used for the same purpose but which have attachable and detachable parts that are liable to become misplaced and lost.

Thus it will be seen that we have produced a waste pipe flushing device that is of relatively simple structure, capable of being'easily and cheaply prouuced, easily and quickly attached andtletached and said device being very effective in performing its intended functions.

Obviously the device is susceptible of minor changes in size, form and construc tion without departing from the spirit of our-invention, the scope of which is set forth in the appended claim.

'We claim as our invention:

In a waste pipe flushing device, the combination, with an inverted hollow conical member formed ct flexible material, said member having a tube formed integral with its upper portion, and also having a block formed at its upper end, which-block is provided with a vertically disposedbearing, of a rocljournaled for rotation in saidbearing and extending downwardly through the center of the hollow conical member, the lower portion of said rod extending below the plane occupied by the lower edge of sad hollow conical member and terminating in an elongated tapered threaded: shank that is adapted to be screwed into any one ofthe apertures in the strainer plate of a sink to clamp tlle hollow conical member firmly, over said strainer -plate, a dislrrigidly, fixed to theupper end of said rod and normally bearing on the-block at the top of the hollow conical member so as to provide a water-tight joint between said rod and its ltiearing, and ears on the upper end ofsaicl rod.

In testimony whereof we have signed our names to this specification.

HAYES SOHERMEBHORN. JUDD w. WEATHERWAX. 

